Bryant D Nielson

Bryant D Nielson has spent his career at the intersection of trust and technology, where the question is always the same. Can you prove who did what and keep it private?

He is the CEO of the Quantum Core Institute and the Satoshi Institute, and the founder of The Blockchain Academy. His work sits on both sides of the coming cryptographic shift. He studies the quantum computers that will break today's encryption, and he advises leaders on the systems that depend on that encryption to function.

That dual view shaped Countdown to Q-Day. Nielson has spent years working in payment systems, digital identity, and corporate treasury, where a broken signature or a forged record is not theoretical. It costs money and erodes trust. He wrote this book because most executives still treat the quantum threat as a problem for later, and he has seen how expensive "later" becomes.

He is also the author of The Ultimate Bitcoin Mining Handbook and a frequent voice on corporate Bitcoin strategy, cryptographic governance, and the risks leaders keep filing under "not my job."

He is also the author of Length Your Stride and Extradoronary or Extinct, helping indivudals improve and manage their lives

Nielson writes for the people who have to make the call. Executives, CISOs, and board members who need to understand a technical threat without a technical degree. His goal is simple. Give them the clock and enough time to act on it.